Street-car trolley-pole wheel.



s. BRYAN. STREET GAR TROLLEY POLE WHEEL.

APPLICATION FILED JUNE 20, 1907.

Patented Feb. 23, 1909.

INVhN I OR 6013 ONBRJ AN. lfi'j WITNESSES lwiz, /44, zm.

ATTU RNEY r UFFICE.

l SOLON BRYAN, OF SAN DIEGO, (.iALlFllRNlA.

STREET-CAR TROLLEY-POLE WHEEL.

Specification of Letters Patent.

Application filed. June 20, 1907.

Patented Feb. 23, 1909.

Serial No. 279,992.

To all whom it may concern:

Be it known that I, SoLoN BRYAN, a citiand at all times is so arranged that it runs square with the line. This appliance is free from any spring or other binding obrccts that might cause t to press on e ther side of the line, and thereby cause it to run off.

Another object is to provide means for breaking the current and preventing the wire from leaving the wheel when the said wire sheers in said wheel.

I attain these objects by the mechanism illustrated in the accompanying drawings, in which,

- Figure 1, is a top elevation of the entire wheel and connections; Fig. 2 is a side elevation showing the rope passing through the pulle which draws the wheel in line with the pole the other or ilaced back on the line; Fi 3 is a sectiona view of the wheel complete showing the method of construction of the insulated rim that passes around. each side of the wheel on the inside of the groove in which the line travels.

Referring more particularly to the drawing} A desi nates the lrolley wheel which has a head of insulating material, such as glass. set into the inner faces of its flanges or rims intermediate of the base of the groove and the edges of said flanges.

In Fi 2, 0 indicates the overhead trolley wire or line. It has been found from tests that when the wire sheers in the wheel and be ins to climb out of the groove as in oing around a curve, it comes in contact wit the smooth rounded surface of, the beads B which cause said Wire to slip back to the bottom of the groove. Said beads also break the current and prevent further sparking which would otherwise. take place from friction between the line and the flange of the wheel. This action is of great importance to prevent the wheel from jumping the wire in turning a curve at a high speed. The

trolley wheel is preferably formed with apcrtures D through its web. Said wheel is pivotally mounted in the outer forked end r\ of an arm W which is pivoted intermediate of its ends to the end of the trolley pole M, as at F, by means of the bolt (1. The u per end of said pole near where the arm I is pivoted lhcreto,.is formed into a loop ll in which is mounted a pulley H which is thus in alincmcnt with said pole. A fan-shaped casing [J is securcd to the upper portion of the trolley pole and houses the inner end E of said arm W on three sides while the looped portion of the pole houses said end E on the other side. Said inner end 1*: of the arm ll has an eye T at its end to which is secured a flexible connection or rope I passing through the loop H over the pulley H and down lo the car for controlling the trolley. By means of this rope the trolley wheel may be brought into line with the pole whenever desired and said pole may be drawn down so as to remove the wheel from the wire.

The trolley wheel-is preferably mounted in bearings 0 having separate oil cups P on each side secured to the arm V. by bolts ll. Said oil cups are extended downwardly to a considerable extent to provide storage fortbc oil. w ien desired to be shifted from one line to The c ups are closed by suitable covers such as thc hinged closures S shown in Figs. 1 and .2.

The construction of the trolley wheel is such that it is aulomatic in operation. does not bind of cause friction on the wire, may be applied to the ordinary standard trolley pole now in use without making alterations, and may be easily and qu ckly removed from the pole- The hinged conne tion of the wheel with the frame makes said uhcel very sensitive in following the line wire accurately under all circumstances.

I claim;

1. The combination, with a trolley pole, of an arm its ends an ad. ted to swing laterally out of the line of sai po e, a wheel mounted on the outer end of said arm. a casing housing the inner nd of said arm on three sides, and means connected with said inner end of said arm for bringing said arm into line with the pole when desired.

2. The combination, with a trolley pole, of an arm pivoted thereto intermediate of its ends and adapted to swing laterally out of the line of said pole, a trolley wheel l mounted on the outer end of said arm, flexible ivoted thereto intermediate of y when desired; and a guide wheel for said alinement therewith.

.of an arm pivoted thereto intermediate .of-its inner end of said arm on three sides.

connection from the inner end of said arm for bringing sa'id arm into line with the pole when desired, and a guide wheel'for' said flexible. connection mounted onsaid-pole in 7 3. The combination, with a trolley-pole, of an arm pivotedv thereto intermediate" of its ends and adapted to swing laterally out of the line of said pole, a trolley wheel mounted on the outer end of said arm, flexible connection from the inner'end of'said arm ,forbringing said arm into' line' with the pole flexible connection mountedin a loop; formed in the trolley pole;

4. The combination, with a trolley pole,

" 5. The combination, 'witha trolley pole,

of an arm pivotedthereto intermediate of its ends and adapted to swing laterally out of the line-of said pole, a trolley wheel mounted on the outer end of said arm, flexible connection fromthe inner end of said arm for bringing said arm into line with the pole when desired, a guide wheel for said flexible connection mounted in a' loop formed in the trolley pole, and a casing housing the inner end of said arm on three sides whilesaid,looped-portion of .the pole housesit on the other s1de. .6. A trolley Wheel having smooth rounded beads of hard insulation projecting from the inner ,faces of the flanges forming the wire engaging groove. for the purpose specified.

7. A.- trolley wheel having smooth rounded beads of hard insulation projecting from the inner faces of the flanges forming the wire engaging groove andv intermediate of the base of said groove and theedges of said flanges for the purpose specified.

- In testimony whereof I have affixed my signature in the presence of two witnesses. SOLON BRYAN.

"Witnesses J. W. ,LIASHER, JULIA M; HILB. 

